straight well meaning in English
直井
Examples
- Moreover , the oil output in each horizontal well increases by more than twice compared to the straight well in the research zone . all obtained perfect result
其中水平井的单井产能与井区内直井相比提高了2倍以上，取得了良好的应用效果。 - Well trajectory for non - straight wells , which includes directional wells , horizontal wells , siedtracking and / or horizontal wells , long - reach wells and multibranches , is one of key techniques in non - straight drilling . the main results , obtained in this dissertation , may be summarized as follows
本文以石油工程中的非直井(定向井、水平井、侧钻井、侧钻水平井、大位移井、分支井)轨迹控制为背景，研究了一类约束优化与最优控制问题。 - Researches involved in this study are derived from reviewing and summarizing the history of well trajectory for non - straight wells . 2 . chapter two presents an optimized model named cora with multi - constraints based on analyzing and reviewing some conventional methods been used in petroleum industry nowadays
第一章简要介绍了非直井迹最优控制理论的工程背景，给出了文中将要用到参数的工程含义，回顾与总结了70年间非直井迹技术的发展概况。 - Some constraints such as kick - off - point , build - up rate of bottom - hole assembly ( bha ) , toolface orientation , inclination and azimuth etc . are involved in this novel model quantitatively for the first time . its high design efficiency and accuracy are validated after used in more 22 non - straight wells
从系统论的角度指出本文研究的目的与意义在于如何综合运用已有的研究成果、硬件环境及技术人员的经验与直觉，使得井迹控制技术达到“整体最优” 。 - As compared with the conventional straight well , the horizontal well can greatly increase the contact area between well and reservoir , change the filtrational mode in the vicinity of wellbore in the reservoir and reduce filtrational resistance , thus obtaining higher oil and gas production by a relatively low producing pressure difference
摘要同常规的垂直井相对比，采用水平井开采能够大幅度增加油气井与油气藏的接触面积，改变油气藏中井筒附近区域的渗流方式，降低渗流阻力，进而可以利用较低的生产压差来实现更高的油气产量。